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Contract OI history

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Dec 18, 2026 EXPIRATION

ISRG $420.00 Call

ISRG261218C00420000

Latest saved OI506Oct 23, 2026
Last change-7vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ISRG $420.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 5132560 2026-10-09: 413 OI2026-10-13: 497 OI2026-10-14: 497 OI2026-10-15: 498 OI2026-10-16: 511 OI2026-10-21: 513 OI2026-10-23: 506 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

ISRG contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing506-7
Oct 21, 2026513+2
Oct 16, 2026511+13
Oct 15, 2026498+1
Oct 14, 20264970
Oct 13, 2026497+84
Oct 09, 2026413No prior observation